Alternative project hosting options

Aspects of project hosting that are presently on GitHub:

• Source code revision control*
• Continuous integration
• Issue tracking
• Release tarballs**
• Release notes***
• Wiki***
• Discussion board

* Mirrored on GitLab

** Mirrored on SourceForge

*** Mirrored on the website, hosted on CloudFlare

Below follows a breakdown of the CI workflow requirements, as they're arguably the most complex.

Requirements:

First: Build, run unit tests, install, launch netatalk, uninstall; on these supported OSes:

• Alpine Linux
• Arch Linux
• Debian GNU/Linux
• Fedora
• openSUSE
• Ubuntu
• macOS
• DragonflyBSD
• FreeBSD
• NetBSD
• OpenBSD
• OmniOS
• Solaris

Second: Build the testsuite Docker image, register it with a container registry, and then launch a matrix of jobs that execute the containerized testsuite with parameters.